What material for watch cushions
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Sorry, a naive fallacy, far from reality. What you are getting is an average speed, the balance wheel however is changing permanently between zero and maximum speed. Near the middle position - where we are looking here - it reaches maximum velocity, a multiple of average. You can calculate the angle of course, but not so simple. Take in account the sinusoidal character of this velocity. Clever people use PCTM - it shows exactly that error angle together with beat error as milliseconds 😀 Frank
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Always listen to the voice in the back of your head which says in this particular case extreme caution. Versus jumping in and breaking something that you really don't want to do. Then somewhere in the group we've had the discussion of all the friends whatever who find out what your hobby is and suddenly they have a watch that needs to be serviced. Because conveniently the you're the only watchmaker still alive on the planet at least that they know of. Not that they couldn't find a watchmaker Conveniently they don't because They would then have to make a serious commitment of paying money. On a case like this it was properly tightened the ball definitely will not work but it might it just shouldn't because it should be really nice and tight. If you have the proper hand held ones most of the time that work fine but they can slip and scratch things up. Then I'd be curious to see a picture of the Bergeon Case (as there's probably more than one choice in their catalog I'm curious about which one the Chinese have cloned?
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Is that right, or should it be half that amount? For a 3ms beat error, do you not need a 1.5ms adjustment which effectively makes the tick 1.5ms sooner, and the tock 1.5ms later, correcting the 3ms error. Just asking.
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It may be listed on the Australian eBay site but doesn't appear to be any other shipping choice other than Great Britain.
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Hello, I'm new here. I like the idea, but use an old balance from a junk/parts watch to test it out. I'm of the impression that the idea will work well, as long as it runs true enough.
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